Welcome to J3 Company, the Heavy Civil Experts.
Serving South, Central, and West Texas for over 20 years!
What we build.
Also trucking and hauling across central to western Texas.
J3 Project Highlight. LCRA HEK
J3 Company utilities construction project, a 60-mile plus stretch transmission line upgrade project from San Marcos to Comfort, TX, part of the Hays Energy-Kendall Corridor Transmission Line Upgrade project by LCRA Transmission Services Corp.
Industrial & EnergyFamily owned and operated.
Owned and operated by the Jons family, J3 Company has served South, Central, and West Texas for over 20 years, specializing in high-quality, safe, and efficient heavy civil, concrete infrastructure, public works, and land development projects.
J3 is one of the fastest-growing SBE (Small Business Enterprise) certified, self-performing heavy civil construction companies in the region, headquartered in Comfort with an office in San Antonio.
More about us